Home / 102,388.74-141,307.96-57,070.86

Finding the Fourth Proportional to 102,388.74, 141,307.96 and 57,070.86

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Solution

The fourth proportional to 102,388.74, 141,307.96 and 57,070.86 is: 78,764.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,388.74 : 141,307.96 = 57,070.86 : x
  2. Step 2: Convert to fraction form
    102,388.74/141,307.96 = 57,070.86/x
  3. Step 3: Cross multiply
    102,388.74x = 141,307.96 × 57,070.86
  4. Step 4: Simplify right side
    102,388.74x = 8,064,566,802.05
  5. Step 5: Solve for x
    x = 8,064,566,802.05/102,388.74
  6. Step 6: Final answer
    x = 78,764.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.